Interplanetary Scintillation with the Long Wavelength Array

  • CART Astrophysics Seminar Series

May 1, 2025 2:00 PM
PAIS 3205

Host:
Greg Taylor
Presenter:
Charlie Siders (UNM)
It is common knowledge that stars twinkle. This effect, also known as scintillation, is caused by variations in the index of refraction of the atmosphere. At radio frequencies, scintillation is caused instead by variations in the density of free electrons. As a rapidly varying plasma, the solar wind (or interplanetary medium) is a major source of scintillation in radio. By observing this interplanetary scintillation (IPS) from one or more stations, we can infer properties of the solar wind which would otherwise only be observable with spacecraft. I will describe how the solar wind produces interplanetary scintillation, how IPS observations are made, how to distinguish IPS from other sources of scintillation such as the ionosphere, and discuss our attempts to observe IPS using the Long Wavelength Array.

Upcoming Events

Uncertainty quantification for many-body physics: from light nuclei to neutron stars
Ryan Curry (LANL)
Nuclear, Particle, Astroparticle and Cosmology (NUPAC) Seminars
Sep. 29, 2:00 PM
PAIS 3205

Pulsar Cyclic Spectroscopy as a Probe of the Interstellar Medium
Jacob E. Turner (Greenbank/Cornell)
CART Astrophysics Seminar Series
Oct. 1, 2:00 PM - Oct. 1, 3:00 PM
PAIS 3205

Measurement of the CP-Violation Parameters Γ_s, ΔΓ_s and φ_s as a Probe of New Physics via the B_s^0 → J/ψ φ Channel using the ATLAS Detector, and Development of Technologies for a New Measurement at the Future Circular Collider
Saheed Oyeniran (UNM)
Nuclear, Particle, Astroparticle and Cosmology (NUPAC) Seminars
Oct. 6, 2:00 PM
PAIS 3205

SQuInT 2026 Annual Workshop
Various
No Affiliation
Oct. 15, 7:30 AM - Oct. 17, 6:30 PM
Omni Tempe Hotel at ASU, Tempe, Arizona

Title: TBA
Kyle Massingill (NRAO)
CART Astrophysics Seminar Series
Oct. 15, 2:00 PM - Oct. 15, 3:00 PM
PAIS 3205